The browser provides a tree-based visual display of the directory or document
structure. The entire CASCADE window is used to maximize display space. Figure
29 is a sample screen. You can use the scroll bar to roll through
the display. You can click on the nodes to change directories or to display
documents. The nodes in this tree diagram are color coded in the same manner as
items in the directory list:

Figure 29: Navigation Agent browses document and directory structure

The yellow node indicates a second or third level directory that contains a
large number of entries. In order to avoid cluttering the display, these are
summarized as the yellow node. Pressing on the node that is the immediate
parent of this node the button to the immediate left will expand the yellow
node and redisplay the screen. Immediate children of the highest farthest left
node on the tree are always displayed.

The browser provides six buttons at the top of the display:

System Root

Displays the system root directory as the top of the
directory tree.

Cascade Root

Displays CASCADE's starting directory as the top of the
directory tree.